2016 Seat Leon 5D service

The essentials
The level is measured using the dipstick loca-
t ed in the en
gine c
ompartment
›››  page 262.
The oil should leave a mark between zones A and
C . It should never exceed zone
A .
● Zone A : Do not add oil.
● Zone B : You can add oil but keep the level
in th at


zone.
● Zone C : Add oil up to zone
B .
T op
pin

g up engine oil
● Unscrew cap from oil filler opening.
● Add oil slowly.
● At the same time, check the level to ensure
you do not a
dd too much.
● When the oil level reaches at least zone B ,
u n
s

crew the engine oil filler cap carefully.
Oil properties
Engine typeSpecification
Petrol without flexible
service intervalVW 502 00/VW 504 00
Petrol with flexible serv-
ice interval (LongLife)VW 504 00
Diesel. Engines without
Particulate filter (DPF)VW 505 01/VW 506 01/VW
507 00
Engine typeSpecification
Diesel. Particulate Filter
Engines (DPF).
With or without flexible
service interval (with
and without LongLife) a)VW 507 00
Natural gas enginesVW 502 00
a)
Only use recommended oils, otherwise you may damage the
engine.
Engine oil additives
No type of additive should be mixed with the
engine oil. The deterioration caused by these
additives is not covered by the warranty.

››› in Changing engine oil on page 266
››› page 264 Coolant
Fig. 61
Engine compartment: coolant expan-
s ion t
ank

cap. The coolant tank is located in the engine
c
omp
ar

tment ›››
 page 262.
When the engine is cold, replace the coolant
when the level is below .
Coolant specifications
The engine cooling system is supplied from
the factory with a specially treated mixture of
water and at least 40 % of the additive G13
(TL-VW 774 J), purple. This mixture gives the
necessary frost protection down to -25°C
(-13°F) and protects the light alloy parts of
the engine cooling system against corrosion.
It also prevents scaling and considerably rai-
ses the boiling point of the coolant.
To protect the cooling system, the percentage
of additive must always be at least 40 %, » 51

The essentials
even in warm climates where anti-freeze pro-
t ection i
s
not required.
If for weather reasons further protection is
necessary, the proportion of additive may be
increased, but only up to 60 %; otherwise an-
tifreeze protection will diminish and this will
worsen cooling.
When the coolant is topped up, use a mixture
of distilled water and at least 40 % of the
G13 or G12 plus-plus (TL-VW 774 G) additive
(both are purple) to obtain an optimum anti-
corrosion protection ››› in Topping up cool-
ant on p ag
e 267

. The mixture of G13 with
G12 plus (TL-VW 774 F), G12 (red) or G11
(green-blue) engine coolants will significant-
ly reduce anti-corrosion protection and
should therefore be avoided ››› in Topping
up c oo
l

ant on page 267.

››› in Topping up coolant on page 267
››› page 266 Brake fluid
Fig. 62
Engine compartment: brake fluid res-
er v
oir c

ap The brake fluid reservoir is located in the en-
gine c
omp
ar

tment ›››
 page 262.
The level should be between the  and 
marks. If it is below , please visit a Techni-
cal Service.

››› in Topping up brake fluid on
page 268
››› page 267 Windscreen washer
Fig. 63
In the engine compartment: wind-
s c
r

een washer reservoir top. The windscreen washer reservoir is located in
the en
gine c
omp

artment ›››
 page 262.
To top up, mix water with a product recom-
mended by SEAT.
In cold temperatures, add anti-freeze.

››› in Checking and topping up the
windscreen washer reservoir on
page 268
››› page 268 Battery
The battery is located in the engine compart-
ment
›
›

›  page 262. It does not require52

The essentials
Anti-theft wheel bolts Fig. 71
Anti-theft wheel bolt with cap and
a d
apt
er. ●
Remove the wheel cover* or the cap*.
● Insert the special adapter (vehicle tools)
ont o the anti-thef
t

wheel bolt and push it on
as far as it will go.
● Insert the wheel brace (vehicle tools) onto
the adapt
er as far as it will go.
● Remove the wheel bolt ›››
page 58 . Note
Make a note of the code number of the anti-
theft wheel

bolt and keep it in a safe place,
but not in your vehicle. If you need a new
adapter, you can obtain it from the SEAT Offi-
cial Service, indicating the code number. Loosening the wheel bolts
Fig. 72
Wheel: loosen the wheel bolts. ●
Insert the box spanner (vehicle tools) onto
the wheel bo
lt

as far as it will go. An adapter
is required to unscrew or tighten the anti-
theft wheel bolts ››› page 58.
● Turn the wheel bolt approximately one turn
to the lef
t ››› Fig. 72 (arrow). To apply the re-
quired torque, hold the wheel brace at the
end. If it is not possible to loosen a wheel
bolt, carefully apply pressure with one foot
on the end of the box spanner. Hold on to the
vehicle for support and take care not to slip. WARNING
Slightly loosen the wheel bolts (one turn) be-
for e r

aising the vehicle with the jack*. If not,
an accident may occur. Lifting the vehicle
Fig. 73
Crossbar: marks. Fig. 74
Strut: mounting the jack on the vehi-
c l
e. ●
Place the jack* (vehicle tools) on firm
gr ou
nd. If
necessary use a large, strong
board or similar support. If the surface is slip-
pery (for example tiles) place the jack on a
rubber mat or similar to prevent it from slip-
ping ››› .
58

The essentials
Make sure the battery clamps have sufficient
met al-t
o-met
al contact with the battery termi-
nals.
If the engine fails to start after about 10 sec-
onds, switch off the starter and try again after
about 1 minute. WARNING
● Ple a

se note the safety warnings referring to
working in the engine compartment
›››  page 262.
● The battery providing assistance must have
the same v
oltage as the flat battery (12V) and
approximately the same capacity (see imprint
on battery). Failure to comply could result in
an explosion.
● Never use jump leads when one of the bat-
teries
is frozen. Danger of explosion! Even af-
ter the battery has thawed, battery acid could
leak and cause chemical burns. If a battery
freezes, it should be replaced.
● Keep sparks, flames and lighted cigarettes
awa
y from batteries, danger of explosion.
Failure to comply could result in an explo-
sion.
● Observe the instructions provided by the
manufact
urer of the jump leads.
● Do not connect the negative cable from the
other vehic
le directly to the negative terminal
of the flat battery. The gas emitted from the
battery could be ignited by sparks. Danger of
explosion. ●
Do not att ac

h the negative cable from the
other vehicle to parts of the fuel system or to
the brake line.
● The non-insulated parts of the battery
clamp
s must not be allowed to touch. The
jump lead attached to the positive battery
terminal must not touch metal parts of the ve-
hicle, this can cause a short circuit.
● Position the leads in such a way that they
cannot c
ome into contact with any moving
parts in the engine compartment.
● Do not lean on the batteries. This could re-
sult
in chemical burns. Note
The vehicles must not touch each other, oth-
erw i

se electricity could flow as soon as the
positive terminals are connected. Changing the wiper blades
W ind
s

creen wipers service position Fig. 79
Wipers in service position The wiper arms can be raised when the wip-
er
s
ar

e in service position ››› Fig. 79.
● Close the bonnet ›››

 page 262.
● Switch the ignition on and off.
● Press the windscreen wiper lever down-
ward
s briefly 4
› ›
› page 26.
Before driving, always lower the wiper arms.
Using the windscreen wiper lever, the wind-
screen wiper arms return to their initial posi-
tion.

››› page 87 63

The essentials
Changing the windscreen and rear
w indo
w w
iper bladesFig. 80
Changing the windscreen wiper
b l
a

des Fig. 81
Changing the rear wiper blade Raising and lowering windscreen wiper arms
● Place the windscreen wipers in the service
po s
ition ›

›› page 63.
● Grip the wiper arms only b
y the blade's fas-
tening point. Cleaning windscreen wiper blades
●
Raise the wiper arms.
● Use a soft cloth to remove dust and dirt
from the wind
screen wiper blades.
● If the blades are very dirty, a sponge or
damp cloth m
ay be used ››› in Changing
the w ind
s
creen and rear window wiper
blades on page 88.
Changing the windscreen wiper blades
● Lift and unfold the wiper arms.
● Press and hold release button ›››
Fig. 80 1 and pull gently on the wiper blade in the di-
r
ection of
the arr
ow.
● Fit a new wiper blade of the same len
gth
and design on to the wiper arm and hook it
into place.
● Rest the wiper arms back onto the wind-
scr
een.
Changing the rear wiper blade
● Raising/lowering the wiper arm.
● Turn the blade slightly ›››
Fig. 81 (arrow
A ).
● Hold down the release button 1 while
g ently
p

ulling the blade in the direction of ar-
row B .
● Insert a new blade of the same l
en
gth and
type in the rear wiper arm in the opposite di-
rection to the arrow B and hook into place
b utt
on 1 .●
Rep
l

ace the wiper arm on the rear window.

››› in Changing the windscreen and
rear window wiper blades on page 88
››› page 87 64

Seat belts
The seat belts are equipped with an automat-
ic r
etr
actor on the shoulder strap. Full free-
dom of movement is permitted when the
shoulder belt is pulled slowly. However, dur-
ing sudden braking, during travel in steep
areas or bends and during acceleration, the
automatic retractor on the shoulder belt is
locked.
The automatic belt retractors on the front
seats are fitted with seat belt tensioners
››› page 75.
Releasing the seat belt ● Press the red button on the belt buckle
›››
Fig. 91 B. The latch plate is released and
springs out ››› .
● Guide the belt back by hand so that it rolls
up e a
s

ily and the trim is not damaged.
Positioning seat belts
Seat belts offer their maximum protection on-
ly when they are properly positioned. WARNING
● The seat belt

s offer best protection only
when the backrests are in an upright position
and the seat belts have been fastened prop-
erly.
● Never put the latch plate in the buckle of
another seat. If
you do this, the seat belt will
not protect you properly and the risk of injury
is increased. ●
Never u nb

uckle a seat belt while the vehi-
cle is in motion. If you do, you increase the
risk of sustaining severe or fatal injuries.
● An incorrectly worn seat belt can cause se-
vere injurie
s in the event of an accident.
● For pregnant women, the lap part of the
seat belt
must lie as low as possible over the
pelvis, never across the stomach, and always
lie flat so that no pressure is exerted on the
abdomen ››› Fig. 92.
● Always engage the retractor lock when you
are securin
g a child seat in group 0, 0+ or 1
››› page 82.
● Read and observe the warnings ›››
page 72. Seat belt tensioners
Ho w the se
at

belt tensioner works Read the additional information carefully
› ›
›

 page 15.
The seat belts for the occupants in the front
seats are equipped with belt tensioners. Sen-
sors will trigger the belt tensioners only dur-
ing severe head-on, lateral and rear-end colli-
sions and only if the seat belt is worn. This
retracts and tightens the seat belts, reducing
the forward motion of the occupants.
The belt tensioners will not be triggered in
the event of minor collisions, if the vehicle overturns, or in accidents where no major
forc

es act on the vehicle. Note
● If the se at

belt tensioners are triggered, a
fine dust is produced. This is normal and it is
not an indication of fire in the vehicle.
● The relevant safety requirements must be
obser
ved when the vehicle or components of
the system are scrapped. Specialised work-
shops are familiar with these regulations,
which are also available to you. Service and disposal of belt tension-
er
s The belt tensioners are components of the
se
at
belts

that are installed in the seats of
your vehicle. If you work on the belt tension-
ers or remove and install parts of the system
when performing other repair work, the seat
belt may be damaged. The consequence may
be that, in the event of an accident, the belt
tensioners function incorrectly or may not
function at all.
So that the effectiveness of the seat belt ten-
sioner is not reduced and that removed parts
do not cause any injuries or environmental
pollution, regulations, which are known to
the specialised workshops, must be ob-
served. »
75
Technical data
Advice
Operation
Emergencies
Safety

Airbag system
position must always be maintained with
seat
belt
s fastened while travelling.
● In a side-on collision the side airbags will
not work
if the sensors do not correctly meas-
ure the pressure increase on the interior of
the doors, due to air escaping through the
areas with holes or openings in the door pan-
el.
● Never drive if the interior door panels have
been remov
ed or if the panels have not been
correctly fitted.
● Never drive the vehicle if the loudspeakers
in the door panels
have been removed, un-
less the holes left by the loudspeakers have
been closed properly.
● Always check that the openings are closed
or cov
ered if loudspeakers or other equip-
ment are fitted inside the door panels.
● Occupants of the outer seats must never
carry
any objects or pets in the deployment
space between them and the airbags, or al-
low children or other passengers to travel in
this position. It is also important not to at-
tach any accessories (such as cup holders) to
the doors. This would impair the protection
offered by the side airbags.
● The built-in coat hooks should be used only
for lightweight
clothing. Do not leave any
heavy or sharp-edged objects in the pockets.
● Great forces, such as hard blows or kicks,
must
not be exerted upon the backrest bol-
ster because the system may be damaged. In
this case, the side airbags would not be trig-
gered. ●
Under no cir c

umstances should protective
covers be fitted over seats with side airbags
unless the covers have been approved for use
in your vehicle. Because the airbag deploys
from the side of the backrest, the use of con-
ventional seat covers would obstruct the side
airbag, seriously reducing the airbag's effec-
tiveness.
● Any damage to the original seat upholstery
or around the se
ams of the side airbag units
must be repaired immediately by a special-
ised workshop.
● The airbags provide protection for just one
accident; r
eplace them once they have de-
ployed.
● Any work on the side airbag system or re-
mova
l and installation of the airbag compo-
nents for other repairs (such as removal of
the front seat) should only be performed by a
specialised workshop. Otherwise, faults may
occur during the airbag system operation.
● Do not attempt to modify components of
the airbag sys
tem in any way. Curtain airbags*
Read the additional information carefully
› ›
›

 page 18. WARNING
● In order for the head-protection airbags to
pro v

ide their maximum protection, the pre- scribed sitting position must always be main-
tained w
ith se

at belts fastened while travel-
ling.
● For safety reasons, the curtain airbag must
be disab
led in those vehicles fitted with a
screen dividing the interior of the vehicle.
See your technical service to make this ad-
justment.
● There must be no other persons, animals or
obj
ects between the occupants of the outer
seats and the deployment space of the head-
protection airbags so that the head-protec-
tion airbag can deploy completely without re-
striction and provide the greatest possible
protection. Therefore, sun blinds which have
not been expressly approved for use in your
vehicle may not be attached to the side win-
dows
● The built-in coat hooks should be used only
for lightweight
clothing. Do not leave any
heavy or sharp-edged objects in the pockets.
Please, do not hang the clothes on coat hang-
ers.
● The airbags provide protection for just one
accident; r
eplace them once they have de-
ployed.
● Any work on the head-protection airbag
syst
em or removal and installation of the air-
bag components for other repairs (such as re-
moval of the roof lining) should only be per-
formed by a specialised workshop. Other-
wise, faults may occur during the airbag sys-
tem operation.
● Do not attempt to modify components of
the airbag sys
tem in any way. » 79
Technical data
Advice
Operation
Emergencies
Safety

Safety
– Chec k, w
ith the ignition sw
itched on, that
the control lamp   ››› Fig. 95 does not
light up, with the word    
 in the centre part of the dash panel.
– The warning lamp 
 is illuminated for
60 seconds in the centre part of the dash
panel.
Control lamp with the word   
  (front passenger airbag disabled)
If the front passenger front airbag is disa-
bled, after switching on the ignition, the con-
trol lamp will light up for several seconds,
then it will switch off for about 1 s and then
switch on again.
If the control lamp is flashing, there is a fault
in the disabling of the airbag system ››› .
Pl e
a

se go immediately to an Official Service. WARNING
● The driver of the

vehicle is responsible for
disabling or switching on the airbag.
● Always switch off the ignition before disa-
bling the fr
ont passenger airbag! Failure to do
so could result in a fault in the airbag deacti-
vation system.
● Never leave the key in the airbag disabling
switc
h as it could get damaged or enable or
disable the airbag during driving.
● If the   (airbag dis
abled) control lamp
flashes, the front passenger front airbag will
not trigger in the event of an accident! Have the system immediately checked by an Offi-
ci
a

l Service. Transporting children safely
Saf ety
f
or children
Introduction For safety reasons, as we have learned from
acc
ident

statistics, we recommend that chil-
dren under 12 years of age travel in the rear
seats. Depending on their age, height and
weight, children travelling in rear seats must
use a child seat or a seat belt. For safety rea-
sons, the child seat should be installed in the
rear seat, behind the front passenger seat or
in the centre back seat.
The physical laws involved and the forces
acting in a collision apply also to children
››› page 73. But unlike adults, children do not
have fully developed muscle and bone struc-
tures. This means that children are subject to
a greater risk of injury.
To reduce the risk of injuries, children must
always use special child restraint systems
when travelling in the vehicle.
We recommend the use of child safety prod-
ucts from the SEAT Original Accessories Pro-
gramme, which includes systems for all ages
made by “Peke” (not for all countries).
These systems have been especially de-
signed and approved, complying with the
ECE-R44. regulation.
82